Revert of Fixed a bug where chrome crash omits crash time stamp after it's sent. (patchset #1 id:1 of https://codereview.chromium.org/2568953003/ )

Reason for revert:
See crbug.com/674249: This change broke things in two ways:
- The string format incorrectly uses the crash-time parameter twice, rather than the second parameter coming from upload-time.
- The string format assumes that all crashes have a valid crash-time, which is not the case for Breakpad reports.

Original issue's description:
> Fixed a bug where chrome crash omits crash time stamp after it's sent.
>
> This cl patches in the solution devised by [email protected]. See bug 664430 for detail.
>
> BUG=664430
>
> Committed: https://crrev.com/d8027b2065994c2a5b8cbea2821971dc60b7c6f5
> Cr-Commit-Position: refs/heads/master@{#438333}

[email protected],[email protected]
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=664430

Review-Url: https://codereview.chromium.org/2601853002
Cr-Commit-Position: refs/heads/master@{#440801}
3 files changed